As far as I can read, that use would be completely alright, especially in this challenge. The rule states "include images that are clearly recognizable as existing artwork when photographing your entry. Images that could be mistaken for real objects in the scene may also be included, but must not be so prominent that voters are basically judging a photo of a photo."
This means that voters cannot be simply judging a photo that entirely consists of another photo. If a photo appears somewhere in your photo, maybe your photo is of someone admiring a photo in a museum, that's perfectly fine. Also, look at all the entries that are more or less just a graffiti/mural wall. I'm guessing a vast majority of those are not spray painted just for the photo op. |